BEIJING, Dec. 28 (Xinhua) -- Beijing saw the reading for a major air-pollution index fall to the lowest level in the January-November period since records began in 2013.
Photo: VCG
The PM2.5 reading is a gauge monitoring airborne particles of 2.5 microns or less in diameter, which can penetrate deep into people's lungs and pose serious health risks.
The improved air quality was achieved following impactful measures, including limiting the total amount of carbon emissions and carbon intensity.
In 2021, authorities in Beijing issued quotas for big carbon emitters and helped establish a voluntary greenhouse gas-emission reduction alliance, the official said.